Hello
I'm hoping someone has a similar setup and can tell me where I've made a
mistake. I currently have several OpenBSD routers (R1 & R2) setup to
provide
vxlan(4) overlay transport configured in a dynamic mode. When I run an
iperf
between 2 systems (C1 & C2) connected to the routers I am not receiving
the
performance I expect. Running some traces I see that all traffic between
C1
and C2 is being sent to the multicast address instead of directly. When
I add
a vether(4) interface to each router and run tcpbench between the
routers
directly I am seeing what I would expect, the packets between R1 and R2
and
unicast directly to each other. And when I setup the vxlan interface to
point
directly between 2 routers I am getting the performance expected.
C1 --- (em1)[bridge0] R1 [vxlan0](em0) ===+
|
(multicast addr 239.255.3.99) LAN
|
C2 --- (em1)[bridge0] R2 [vxlan0](em0) ===+
I have included the dmesg's from both routers as well as the interface
configurations. Please let me know if other information would be
useful.
Thanks is advance for any assistance.
============= R1 DMESG
OpenBSD 6.5-current (GENERIC.MP) #101: Fri Jul 5 08:19:55 MDT 2019
dera...@amd64.openbsd.org:/usr/src/sys/arch/amd64/compile/GENERIC.MP
real mem = 8460705792 (8068MB)
avail mem = 8194191360 (7814MB)
mpath0 at root
scsibus0 at mpath0: 256 targets
mainbus0 at root
bios0 at mainbus0: SMBIOS rev. 2.8 @ 0xebea0 (51 entries)
bios0: vendor American Megatrends Inc. version "5.6.5" date 08/15/2016
acpi0 at bios0: ACPI 5.0
acpi0: sleep states S0 S3 S4 S5
acpi0: tables DSDT FACP APIC FPDT FIDT TCPA MCFG HPET SSDT SSDT SSDT
UEFI SSDT TPM2
acpi0: wakeup devices EHC1(S4) PXSX(S4) PXSX(S4) PXSX(S4) PXSX(S4)
acpitimer0 at acpi0: 3579545 Hz, 24 bits
acpimadt0 at acpi0 addr 0xfee00000: PC-AT compat
cpu0 at mainbus0: apid 0 (boot processor)
cpu0: Intel(R) Celeron(R) CPU J1900 @ 1.99GHz, 2000.46 MHz, 06-37-08
cpu0:
FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,SSE4.1,SSE4.2,MOVBE,POPCNT,DEADLINE,RDRAND,NXE,RDTSCP,LONG,LAHF,3DNOWP,PERF,ITSC,TSC_ADJUST,SMEP,ERMS,SENSOR,ARAT,MELTDOWN
cpu0: 1MB 64b/line 16-way L2 cache
cpu0: smt 0, core 0, package 0
mtrr: Pentium Pro MTRR support, 8 var ranges, 88 fixed ranges
cpu0: apic clock running at 83MHz
cpu0: mwait min=64, max=64, C-substates=0.2.0.0.0.0.3.3, IBE
cpu1 at mainbus0: apid 2 (application processor)
cpu1: Intel(R) Celeron(R) CPU J1900 @ 1.99GHz, 1999.99 MHz, 06-37-08
cpu1:
FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,SSE4.1,SSE4.2,MOVBE,POPCNT,DEADLINE,RDRAND,NXE,RDTSCP,LONG,LAHF,3DNOWP,PERF,ITSC,TSC_ADJUST,SMEP,ERMS,SENSOR,ARAT,MELTDOWN
cpu1: 1MB 64b/line 16-way L2 cache
cpu1: smt 0, core 1, package 0
cpu2 at mainbus0: apid 4 (application processor)
cpu2: Intel(R) Celeron(R) CPU J1900 @ 1.99GHz, 1999.99 MHz, 06-37-08
cpu2:
FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,SSE4.1,SSE4.2,MOVBE,POPCNT,DEADLINE,RDRAND,NXE,RDTSCP,LONG,LAHF,3DNOWP,PERF,ITSC,TSC_ADJUST,SMEP,ERMS,SENSOR,ARAT,MELTDOWN
cpu2: 1MB 64b/line 16-way L2 cache
cpu2: smt 0, core 2, package 0
cpu3 at mainbus0: apid 6 (application processor)
cpu3: Intel(R) Celeron(R) CPU J1900 @ 1.99GHz, 1999.99 MHz, 06-37-08
cpu3:
FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,SSE4.1,SSE4.2,MOVBE,POPCNT,DEADLINE,RDRAND,NXE,RDTSCP,LONG,LAHF,3DNOWP,PERF,ITSC,TSC_ADJUST,SMEP,ERMS,SENSOR,ARAT,MELTDOWN
cpu3: 1MB 64b/line 16-way L2 cache
cpu3: smt 0, core 3, package 0
ioapic0 at mainbus0: apid 1 pa 0xfec00000, version 20, 87 pins
acpimcfg0 at acpi0
acpimcfg0: addr 0xe0000000, bus 0-255
acpihpet0 at acpi0: 14318179 Hz
acpiprt0 at acpi0: bus 0 (PCI0)
acpiprt1 at acpi0: bus 1 (RP01)
acpiprt2 at acpi0: bus 2 (RP02)
acpiprt3 at acpi0: bus 3 (RP03)
acpiprt4 at acpi0: bus 4 (RP04)
acpiec0 at acpi0: not present
acpicpu0 at acpi0: C3(10@1500 mwait.1@0x52), C2(10@500 mwait.1@0x51),
C1(1000@1 mwait.1), PSS
acpicpu1 at acpi0: C3(10@1500 mwait.1@0x52), C2(10@500 mwait.1@0x51),
C1(1000@1 mwait.1), PSS
acpicpu2 at acpi0: C3(10@1500 mwait.1@0x52), C2(10@500 mwait.1@0x51),
C1(1000@1 mwait.1), PSS
acpicpu3 at acpi0: C3(10@1500 mwait.1@0x52), C2(10@500 mwait.1@0x51),
C1(1000@1 mwait.1), PSS
acpipwrres0 at acpi0: PLPE
acpipwrres1 at acpi0: PLPE
acpipwrres2 at acpi0: USBC, resource for EHC1, OTG1
acpicmos0 at acpi0
acpipci0 at acpi0 PCI0: 0x00000010 0x00000011 0x00000000
"DMA0F28" at acpi0 not configured
acpibtn0 at acpi0: SLPB
"INT33BD" at acpi0 not configured
"MSFT0101" at acpi0 not configured
acpivideo0 at acpi0: GFX0
acpivout0 at acpivideo0: DD1F
cpu0: using Silvermont MDS workaround
cpu0: Enhanced SpeedStep 2000 MHz: speeds: 1993, 1992, 1909, 1826, 1743,
1660, 1577, 1494, 1411, 1328 MHz
pci0 at mainbus0 bus 0
pchb0 at pci0 dev 0 function 0 "Intel Bay Trail Host" rev 0x0e
inteldrm0 at pci0 dev 2 function 0 "Intel Bay Trail Video" rev 0x0e
drm0 at inteldrm0
inteldrm0: msi
ahci0 at pci0 dev 19 function 0 "Intel Bay Trail AHCI" rev 0x0e: msi,
AHCI 1.3
ahci0: port 0: 3.0Gb/s
scsibus1 at ahci0: 32 targets
sd0 at scsibus1 targ 0 lun 0: <ATA, Samsung SSD 850, EMT4> SCSI3
0/direct fixed naa.5002538d41c4dfb9
sd0: 238475MB, 512 bytes/sector, 488397168 sectors, thin
"Intel Bay Trail TXE" rev 0x0e at pci0 dev 26 function 0 not configured
azalia0 at pci0 dev 27 function 0 "Intel Bay Trail HD Audio" rev 0x0e:
msi
azalia0: no supported codecs
ppb0 at pci0 dev 28 function 0 "Intel Bay Trail PCIE" rev 0x0e: msi
pci1 at ppb0 bus 1
em0 at pci1 dev 0 function 0 "Intel 82583V" rev 0x00: msi, address
00:ec:ac:ce:b3:1a
ppb1 at pci0 dev 28 function 1 "Intel Bay Trail PCIE" rev 0x0e: msi
pci2 at ppb1 bus 2
em1 at pci2 dev 0 function 0 "Intel 82583V" rev 0x00: msi, address
00:ec:ac:ce:b3:1b
ppb2 at pci0 dev 28 function 2 "Intel Bay Trail PCIE" rev 0x0e: msi
pci3 at ppb2 bus 3
em2 at pci3 dev 0 function 0 "Intel 82583V" rev 0x00: msi, address
00:ec:ac:ce:b3:1c
ppb3 at pci0 dev 28 function 3 "Intel Bay Trail PCIE" rev 0x0e: msi
pci4 at ppb3 bus 4
em3 at pci4 dev 0 function 0 "Intel 82583V" rev 0x00: msi, address
00:ec:ac:ce:b3:1d
ehci0 at pci0 dev 29 function 0 "Intel Bay Trail EHCI" rev 0x0e: apic 1
int 23
usb0 at ehci0: USB revision 2.0
uhub0 at usb0 configuration 1 interface 0 "Intel EHCI root hub" rev
2.00/1.00 addr 1
pcib0 at pci0 dev 31 function 0 "Intel Bay Trail LPC" rev 0x0e
ichiic0 at pci0 dev 31 function 3 "Intel Bay Trail SMBus" rev 0x0e: apic
1 int 18
iic0 at ichiic0
spdmem0 at iic0 addr 0x50: 8GB DDR3 SDRAM PC3-12800 SO-DIMM
isa0 at pcib0
isadma0 at isa0
pcppi0 at isa0 port 0x61
spkr0 at pcppi0
vmm0 at mainbus0: VMX/EPT (using slow L1TF mitigation)
uhub1 at uhub0 port 1 configuration 1 interface 0 "Intel product 0x07e6"
rev 2.00/0.14 addr 2
vscsi0 at root
scsibus2 at vscsi0: 256 targets
softraid0 at root
scsibus3 at softraid0: 256 targets
root on sd0a (496cf0ee9d0a1d1f.a) swap on sd0b dump on sd0b
inteldrm0: 1280x1024, 32bpp
wsdisplay0 at inteldrm0 mux 1: console (std, vt100 emulation)
wsdisplay0: screen 1-5 added (std, vt100 emulation)
============= R1 Interface Configs
=== /etc/hostname.bridge0
group internal
add vxlan0
add em1
add em2
add em3
-link0
-link1
up
=== /etc/hostname.em0
dhcp
group external
mtu 1500
=== /etc/hostname.em1
mtu 1450
group internal
up
=== /etc/hostname.em2
mtu 1450
group internal
up
=== /etc/hostname.em3
mtu 1450
group internal
up
=== /etc/hostname.vxlan0
group internal
tunnelttl 10
vnetid 99
!/root/update_vxlan.sh
=== /root/update_vxlan.sh
#!/bin/sh
PEER="239.255.3.99"
EXTIF=em0
for VXIF in `ifconfig vxlan | egrep '^vxlan' | cut -f1 -d:`; do
EXT_IP=`ifconfig $EXTIF | sed -nre 's/.*inet ([^ ]+).*/\1/p'`
if [ ! -z "$EXT_IP" ]; then
ifconfig $VXIF tunnel $EXT_IP $PEER
ifconfig $VXIF up
else
echo "$VXIF: no IP on $EXTIF"
exit 1
fi
done
exit 0
============= R2 DMESG
OpenBSD 6.5-current (GENERIC.MP) #101: Fri Jul 5 08:19:55 MDT 2019
dera...@amd64.openbsd.org:/usr/src/sys/arch/amd64/compile/GENERIC.MP
real mem = 8391659520 (8002MB)
avail mem = 8127234048 (7750MB)
mpath0 at root
scsibus0 at mpath0: 256 targets
mainbus0 at root
bios0 at mainbus0: SMBIOS rev. 3.0 @ 0xecec0 (51 entries)
bios0: vendor American Megatrends Inc. version "5.6.5" date 12/26/2018
bios0: Default string Default string
acpi0 at bios0: ACPI 5.0
acpi0: sleep states S0 S3 S4 S5
acpi0: tables DSDT FACP APIC FPDT FIDT MCFG LPIT HPET SSDT SSDT SSDT
UEFI
acpi0: wakeup devices PS2K(S3) PS2M(S3) XHC1(S4) PXSX(S4) RP01(S4)
PXSX(S4) RP02(S4) PXSX(S4) RP03(S4) PXSX(S4) RP04(S4)
acpitimer0 at acpi0: 3579545 Hz, 24 bits
acpimadt0 at acpi0 addr 0xfee00000: PC-AT compat
cpu0 at mainbus0: apid 0 (boot processor)
cpu0: Intel(R) Celeron(R) CPU J1900 @ 1.99GHz, 2000.32 MHz, 06-37-09
cpu0:
FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,SSE4.1,SSE4.2,MOVBE,POPCNT,DEADLINE,RDRAND,NXE,RDTSCP,LONG,LAHF,3DNOWP,PERF,ITSC,TSC_ADJUST,SMEP,ERMS,IBRS,IBPB,STIBP,SENSOR,ARAT,MELTDOWN
cpu0: 1MB 64b/line 16-way L2 cache
cpu0: smt 0, core 0, package 0
mtrr: Pentium Pro MTRR support, 8 var ranges, 88 fixed ranges
cpu0: apic clock running at 83MHz
cpu0: mwait min=64, max=64, C-substates=0.2.0.0.0.0.3.3, IBE
cpu1 at mainbus0: apid 2 (application processor)
cpu1: Intel(R) Celeron(R) CPU J1900 @ 1.99GHz, 2000.01 MHz, 06-37-09
cpu1:
FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,SSE4.1,SSE4.2,MOVBE,POPCNT,DEADLINE,RDRAND,NXE,RDTSCP,LONG,LAHF,3DNOWP,PERF,ITSC,TSC_ADJUST,SMEP,ERMS,IBRS,IBPB,STIBP,SENSOR,ARAT,MELTDOWN
cpu1: 1MB 64b/line 16-way L2 cache
cpu1: smt 0, core 1, package 0
cpu2 at mainbus0: apid 4 (application processor)
cpu2: Intel(R) Celeron(R) CPU J1900 @ 1.99GHz, 2000.01 MHz, 06-37-09
cpu2:
FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,SSE4.1,SSE4.2,MOVBE,POPCNT,DEADLINE,RDRAND,NXE,RDTSCP,LONG,LAHF,3DNOWP,PERF,ITSC,TSC_ADJUST,SMEP,ERMS,IBRS,IBPB,STIBP,SENSOR,ARAT,MELTDOWN
cpu2: 1MB 64b/line 16-way L2 cache
cpu2: smt 0, core 2, package 0
cpu3 at mainbus0: apid 6 (application processor)
cpu3: Intel(R) Celeron(R) CPU J1900 @ 1.99GHz, 2000.01 MHz, 06-37-09
cpu3:
FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,SSE4.1,SSE4.2,MOVBE,POPCNT,DEADLINE,RDRAND,NXE,RDTSCP,LONG,LAHF,3DNOWP,PERF,ITSC,TSC_ADJUST,SMEP,ERMS,IBRS,IBPB,STIBP,SENSOR,ARAT,MELTDOWN
cpu3: 1MB 64b/line 16-way L2 cache
cpu3: smt 0, core 3, package 0
ioapic0 at mainbus0: apid 1 pa 0xfec00000, version 20, 87 pins
acpimcfg0 at acpi0
acpimcfg0: addr 0xe0000000, bus 0-255
acpihpet0 at acpi0: 14318179 Hz
acpiprt0 at acpi0: bus 0 (PCI0)
acpiprt1 at acpi0: bus 1 (RP01)
acpiprt2 at acpi0: bus 2 (RP02)
acpiprt3 at acpi0: bus 4 (RP04)
acpiec0 at acpi0: not present
acpicpu0 at acpi0: C1(@1 halt!), PSS
acpicpu1 at acpi0: C1(@1 halt!), PSS
acpicpu2 at acpi0: C1(@1 halt!), PSS
acpicpu3 at acpi0: C1(@1 halt!), PSS
acpipwrres0 at acpi0: PLPE
acpipwrres1 at acpi0: PLPE
acpipwrres2 at acpi0: USBC, resource for EHC1, OTG1
acpicmos0 at acpi0
acpipci0 at acpi0 PCI0: 0x00000010 0x00000011 0x00000000
"DMA0F28" at acpi0 not configured
acpibtn0 at acpi0: PWRC
acpibtn1 at acpi0: SLPB
acpivideo0 at acpi0: GFX0
acpivout0 at acpivideo0: DD1F
cpu0: using Silvermont MDS workaround
cpu0: Enhanced SpeedStep 2000 MHz: speeds: 1993, 1992, 1909, 1826, 1743,
1660, 1577, 1494, 1411, 1328 MHz
pci0 at mainbus0 bus 0
pchb0 at pci0 dev 0 function 0 "Intel Bay Trail Host" rev 0x11
inteldrm0 at pci0 dev 2 function 0 "Intel Bay Trail Video" rev 0x11
drm0 at inteldrm0
inteldrm0: msi
ahci0 at pci0 dev 19 function 0 "Intel Bay Trail AHCI" rev 0x11: msi,
AHCI 1.3
ahci0: port 1: 3.0Gb/s
scsibus1 at ahci0: 32 targets
sd0 at scsibus1 targ 1 lun 0: <ATA, Hoodisk SSD, SBFM> SCSI3 0/direct
fixed t10.ATA_Hoodisk_SSD_K3DTC7A21209006_
sd0: 30533MB, 512 bytes/sector, 62533296 sectors, thin
xhci0 at pci0 dev 20 function 0 "Intel Bay Trail xHCI" rev 0x11: msi,
xHCI 1.0
usb0 at xhci0: USB revision 3.0
uhub0 at usb0 configuration 1 interface 0 "Intel xHCI root hub" rev
3.00/1.00 addr 1
"Intel Bay Trail TXE" rev 0x11 at pci0 dev 26 function 0 not configured
azalia0 at pci0 dev 27 function 0 "Intel Bay Trail HD Audio" rev 0x11:
msi
azalia0: no supported codecs
ppb0 at pci0 dev 28 function 0 "Intel Bay Trail PCIE" rev 0x11: msi
pci1 at ppb0 bus 1
em0 at pci1 dev 0 function 0 "Intel I211" rev 0x03: msi, address
40:62:31:08:3d:e5
ppb1 at pci0 dev 28 function 1 "Intel Bay Trail PCIE" rev 0x11: msi
pci2 at ppb1 bus 2
em1 at pci2 dev 0 function 0 "Intel I211" rev 0x03: msi, address
40:62:31:08:3d:e6
ppb2 at pci0 dev 28 function 2 "Intel Bay Trail PCIE" rev 0x11: msi
pci3 at ppb2 bus 3
em2 at pci3 dev 0 function 0 "Intel I211" rev 0x03: msi, address
40:62:31:08:3d:e7
ppb3 at pci0 dev 28 function 3 "Intel Bay Trail PCIE" rev 0x11: msi
pci4 at ppb3 bus 4
em3 at pci4 dev 0 function 0 "Intel I211" rev 0x03: msi, address
40:62:31:08:3d:e8
ehci0 at pci0 dev 29 function 0 "Intel Bay Trail EHCI" rev 0x11: apic 1
int 23
usb1 at ehci0: USB revision 2.0
uhub1 at usb1 configuration 1 interface 0 "Intel EHCI root hub" rev
2.00/1.00 addr 1
pcib0 at pci0 dev 31 function 0 "Intel Bay Trail LPC" rev 0x11
ichiic0 at pci0 dev 31 function 3 "Intel Bay Trail SMBus" rev 0x11: apic
1 int 18
iic0 at ichiic0
spdmem0 at iic0 addr 0x50: 8GB DDR3 SDRAM PC3-12800 SO-DIMM
isa0 at pcib0
isadma0 at isa0
com1 at isa0 port 0x2f8/8 irq 3: ns16550a, 16 byte fifo
pckbc0 at isa0 port 0x60/5 irq 1 irq 12
pckbd0 at pckbc0 (kbd slot)
wskbd0 at pckbd0: console keyboard
pcppi0 at isa0 port 0x61
spkr0 at pcppi0
it0 at isa0 port 0x2e/2: IT8721F rev 1, EC port 0xa30
vmm0 at mainbus0: VMX/EPT (using slow L1TF mitigation)
uhub2 at uhub0 port 4 configuration 1 interface 0 "Genesys Logic USB2.0
Hub" rev 2.00/60.70 addr 2
uhidev0 at uhub2 port 3 configuration 1 interface 0 "DELL Dell USB Entry
Keyboard" rev 1.10/1.78 addr 3
uhidev0: iclass 3/1
ukbd0 at uhidev0: 8 variable keys, 6 key codes
wskbd1 at ukbd0 mux 1
uhub3 at uhub1 port 1 configuration 1 interface 0 "Intel product 0x07e6"
rev 2.00/0.17 addr 2
vscsi0 at root
scsibus2 at vscsi0: 256 targets
softraid0 at root
scsibus3 at softraid0: 256 targets
root on sd0a (c94fe73725161de1.a) swap on sd0b dump on sd0b
inteldrm0: 1280x1024, 32bpp
wsdisplay0 at inteldrm0 mux 1: console (std, vt100 emulation), using
wskbd0
wskbd1: connecting to wsdisplay0
wsdisplay0: screen 1-5 added (std, vt100 emulation)
============= R1 Interface Configs
=== /etc/hostname.bridge0
group internal
add vxlan0
add em1
add em2
add em3
-link0
-link1
up
=== /etc/hostname.em0
dhcp
group external
mtu 1500
=== /etc/hostname.em1
mtu 1450
group internal
up
=== /etc/hostname.em2
mtu 1450
group internal
up
=== /etc/hostname.em3
mtu 1450
group internal
up
=== /etc/hostname.vxlan0
group internal
tunnelttl 10
vnetid 99
!/root/update_vxlan.sh
=== /root/update_vxlan.sh
#!/bin/sh
PEER="239.255.3.99"
EXTIF=em0
for VXIF in `ifconfig vxlan | egrep '^vxlan' | cut -f1 -d:`; do
EXT_IP=`ifconfig $EXTIF | sed -nre 's/.*inet ([^ ]+).*/\1/p'`
if [ ! -z "$EXT_IP" ]; then
ifconfig $VXIF tunnel $EXT_IP $PEER
ifconfig $VXIF up
else
echo "$VXIF: no IP on $EXTIF"
exit 1
fi
done
exit 0
